When we thing electronic ink, we tend to think of black-and-white eReaders, meant to mimic books. In our haste, we’ve forgotten that ink is colorful, too. E Ink, a leader in electronic ink technology, is gently reminding us that ink can be beautiful, too. At CES, the company is unveiling Prism, a dynamic display that can be programmed to change colors, and utilizes unique materials. Though Prism is meant for architectural endeavors, we’d like to see it elsewhere, too.